Door lock



Dec. 4, 1951 M. SPINELLO DOOR LOCK Filed Aug. 17. 194e;l

Patented Dec. 4, 1951 UNITED STATES PATENT OFFICE Y Y .Y 2,577,216, l t

noon Locri' p MathewSpinello, Rockford, Ill.

original` 'appiic'a'mm July` 9, 1945, serial No.Y

Divided and this application August 17, 1946,1Serial NoI 691,414l

be bored with an auger bit, so that there is very little mortising necessary.

The principal object of my invention is to pro- -vide in connection Ywith the lock inner and outer door knobs and an operating connection between the inner knob and the bolt, .together with a clutch device controllable from the inside of the door by a push and pull button to'connect or disconnect the outside knob with the inside knob, while still permitting opening of thev door `from the outside with a key in the conventional way.

The invention is illustrated in the accompanying drawing, in which f Y Fig. 1 is a vertical section through a portion of a door showing a bore type lock made in' ac#- cordance with my inventionl in which'the bolt is retractable at anytime by an inside knob and *is retractable also by the outside knob subject to inside push and pull button control, and

Figs. 2, 3, and 4 are three views of the clutch mechanism shown in Fig. 1.

The same reference numeralsare applied to corresponding parts throughout these views.

Referring to the drawing, the reference numeral lla designates a door in which transverse holes I2 and i3 are bored with auger bits to receive the lock I 4. |501 is the' bolt reciprocable in the housing I6 that is received in. the hole l2 and fastened in placein the` usual`way'r by an escutcheon plate in a recess mortised in theV edge of the door, the bolt having the usual beveled face on Vthe outer end thereof;- which faces Aone way for left hand operation 'and in the opposite direction for 'right handoperation. A 'long'coiled compression spring (not shown) 'urges vthe bolt Ia normally outwardly. In other words, the bolt is a spring latch which permits' slamming ythe doorvwith the bolt projecting, but, 'as will soon appear, it requires'the operation ofthe inside knob 62er the key 23on the outside of the door to retract the bolt so that the door can be opened, and when the outside knobl is interconnected with the inside knob 62, the bolt I5a may be re-V tracted by turning the knob Iv without thenecessity of using the key 23.,

' Outer and inner escutcheon plates are indicated 1o claims.; (c1. 2927-173) at 59 and 60, and the clutch device for connecting or disconnecting the outside knob 6i from the bolt |5a is indicated at 63, this clutch device being controllable from the inside of the door by a push and pull button 64. The lock I4' is shown as entered in the hole I3 and clamped in a recess inthe oustide escutcheon plate 59 from the inside of the door by an attaching plate 66 and screws 21' entered through the attaching plate and threaded in ears 28 provided on the body 29 of the lock. The cylinder 30 of the lock has a loose lost motion connection with the stub shaft 322 as indicated at 3|', the free end ofthe shaft 32' being suitably supported for rotation in a hole 61 provided therefor in the attaching plate 66. The arm 35 for operating the bolt |5a has a rectangular hole 36 provided in the upper end thereof slidably receiving the rectangular shaft 32 for an operating connection. The pin 40 connecting the lower end of the arm 35 to the bolt l5a is' tubular and a pin 68 is entered therein to provide another operating connection between the bolt I5a and another arm 69 that is arranged to be turned by means of a square shaft 'l0 on which the knob 62 is mounted. There is sufcient play in the connection between the arm 35 and the pin 4U to give freedom of movement of the arm 69. The shaft 10 has a swivel connection, as indicated at 1I, with another square shaft 'I2 on which the knob 6| is mounted. The shafts 'lll and 12 are adapted to be positively connected to turn together, so that the bolt I5a may be retraced by turning the outside knob 6l. The clutch 63 performs this function and is in the form of a sleeve 13 having a square bore 14 which in one position of the sleeve, indicated in dotted lines in Fig'. 1, accommodates only the inner end portion of the shaft 1D, but in the other position of the sleeve, shown in full lines in Fig. 1, is in overlapping relation to the inner end portions of both shafts. A spring pressed ball detent 'l5 hou/sed 4in a hole in the shaft 10 is adapted to enter either of two conical depressions l5 in the bore 1'4 of the sleeve to lock the sleeve releasably 'in either of the two positions mentioned. A yoke 11 carried on the inner end of the shank 1 8 of the push and pull button 64 is entered in an annular groove 19 in the adjacent end of the sleeve 'i3 to provide an operating connection between the sleeve and the button, so that the sleeve may be moved from one position to the other by push and pull movement of the button 66. Now, it is obvious that unless the shaft l2 is in registerl angularly with the shaft l0, it would not be possible to move the sleeve 13 in the manner Stated,

Atages of my invention. .have been drawn to cover all legitimate :modificaand for that reason I have provided a spring type registering or detent device 8U made of spring wire and having rectangular loops 8| and 82 on its opposite ends, the loop 8| tting tightly on parallel flats 83 milled in opposite sides of the sleeve 13, and the loop 82 closely embracing the opposed flat sides of the shaft 12. In that way, it is clear that one may turn the shaft`12 relative to the registering device 80 when the shaft 12 is in declutched relation to the shaft 10, but such turning will be against the spring resistance or detent action of the loop 82, and the shaft` 12 will always stop in a position in angular registration with the shaft 18, so that the sleeve-.13'can be slipped over the inner end portion ofthe shaft 12 to connect the shafts TD and12 wheneverthat. is desired.

In operation, assuming that the clutch device 63 is in the position shown in Fig. l connecting the shafts 'I8 and 12, one may open the door from the outside by turning the knob 6I, Vthe turning of the shaft 10 with theshaft 12l'causing oscillatory movement of the arm 69Y to retract the bolt Ia. However, when the button 64 is pulled out to the dotted line position shown in Fig. 1, the outside knob 5l is thereby disconnected from operative relation to the bolt 5a and undersuch conditions the door may be kopened fromi the outside only with the proper key v23.

It is believed the foregoing description conveys a good understanding of the objects and advan- The appended claims tionsrand adaptations.

I claim:

l, In a door latch mechanism, the combination with a bolt mounted in a door for reciprocation, an inside manually operable knobhaving a shaft rotatable thereby, means operatively connecting said shaft with said bolt, an outside manually operable knob having a shaft rotatable thereby coaxiaily aligned with the iirst shaft, a clutch device movable on the inside shaft lto a position overlapping the end of the outside shaft for de- .tachably correcting said shafts, an inside-operable push and pull button adjacent the inside operable knob and guided for reciprocationV in spaced parallel relation to said shafts and operatively connected with said clutch device to move the same positively in either direction lengthwise relative to the inside shaft to connect or disconnect said shafts, and spring pressed means carried on the clutch device and held thereby vin a fixed relation to the insideshaft andoperatively engaging said outside shaft for yieidably/-restraining turning of the outside shaft krelative to the inside shaft when in declutched relationship thereto and Vtending to stop `said outside `shaft always in registering clutchable relationship to inside shaft and the ciutch device.

2. In a door latch mechanism the combination of an inside and an outside knob, squarershafts operable thereby and coaxially aligned and swivelly connected, door latch actuating means operable from one of said shafts, a vclutch collar having a square bore slidably receivedon one of said shafts, spring detent means for holding said collar releasably in a retracted position on said one shaft or in a moved position receiving vthe lend portion of the other shaft also, spring detent means for releasably holding said'other shaft in registering clutchable relationship to the first shaft, and manually operable means operable from one side of the door for shifting said clutch collar.

3. A clutch of the character described comprising, in combination, two square shafts coaxially aligned and swivelly connected, a clutch collar having a square bore slidably received on one of said shafts, spring detent means for holding said collar releasably in a retracted position on said one shaft or in a moved position receiving the end portion of the other shaft also, spring detent means for releasably holding said other shaft in registering clutchable relationship to the first shaft, and means for shifting said collar.

4.- A clutch of the character described comprising, in combination, two like shafts of regular polygonal cross-section coaxially aligned and swivelly-connected, a clutch collar having a polygonal bore slidably and nonrotatably received on` one of said gshafts, spring detent means for holding said collar releasably in a retracted position onsaid one shaft or in a moved position receiving the end portion of the other shaft also, and aspringwireloop fixed in `relation to the collar and slidable onY the other shaft in such a Way that said other shaft is spring restrained againstV turning from. clutchable registration.

5. A clutch as set forth in claim 3 wherein the spring detent means'for releasably holding the other shaft'in registering 'clutchable relation to the rst shaft comprises a spring wire loop fixed in relation to the collar and slidable on the other shaft to be'clutched thereby'in'such a way that said other shaft is spring restrained against turning from clutchableregistration.

f6. A `clutch of the-'character described comprising,V in combination, two :square shafts coraxially aligned and swivelly connected, a clutch vcollar having asquare bore'slidably receiving the "end portion 'of vone shaft and adapted to receive the adjacent end'portion of the-other shaft, the collar having parallel .grooves on the opposite sides in a planenormal to the, axis of the collar Vand shafts, and aspring' wire registration member for releasably and resiliently holding vsaid other shaft in registering clutchable relationship to the first shaft, said' detent member comprising two spaced rectangular loops, one of which fits inthe grooves, to hold theregistrationmember against turning relative Vto the collar, and the other of which ts slidably on the other shaft to hold it in register with the bore in the collar.

'7. A clutch as serl forth in claim wherein the wire registration member is rformed to provide two U-shaped loops in'spaced parallel relation and interconnected by parallel portions, each connected at one end to the end of one arm of one loop and at the other end to the corresponding end of one arm of the otherloop.

8. In a door latch mechanism '.the combination of an inside and an outside knob, square shafts operable thereby and coaxially aligned and swivelly connected, door latch actuating means operable from one of said shafts, a clutch collar having-,a square bore'slidably received on one of said shafts'spring detent .means for holding said col- .larreleasably in a retracted position on said one shaft or la moved position receivinglthe end portion of v.the other shaft also, Aa spring wire Vregistration, member forrreleasably and resiliently holding said other shaft in registering clutchable relationship-to `thesaid one-shaft and formed to provideV spaced U-shaped jaw portions spacedly interconnected by the ends of their arms, one jaw portion holding thecollar and the other holding the other shaft to resist 'turning relative to the collar, and manually operable means operable from one side of the door for shifting `said clutch collar.

said collar releasably in a retracted position on; said shaft or in a moved position receiving thel end portion of the other shaft also, spring detent means for releasably holding said other shaft in registering clutchable relationship to the rst polygoiaal cross-section coaxially aligned and swivellf connected, a clutch collar having a polygonal-bore slidably and non-rotatably received on one of said shafts, spring detent means for holding said collar releasably in a. retracted position on said shaft or in a moved position receiving the end portion of the other shaft also, spring detent means for releasably holding said other shaft in registering clutchable relationship to the first shaft, and means for shifting said collar.

MATHEW SPINELLO.

REFERENCES CITED The following references are of record in the file of this patent:

UNITED STATES PATENTS Number Name Date 1,871,442 Benzee Aug. 16, 1932 FOREIGN PATENTS Number Country Date 192,528 Switzerland Nov. 1, 1937 

